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The Times Australia

Type of ultraviolet light most effective at killing coronavirus is also the safest to use around people

  • Written by: Karl Linden, Professor of Environmental Engineering and the Mortenson Professor in Sustainable Development, University of Colorado Boulder
Type of ultraviolet light most effective at killing coronavirus is also the safest to use around peopleUV light at most wavelengths can kill COVID–19. andriano_cz/iStock via Getty Images

Scientists have long known that ultraviolet light can kill pathogens on surfaces and in air and water. UV robots are used to disinfect empty hospital rooms, buses and trains; UV bulbs in HVAC systems eliminate pathogens in building air; and UV lamps kill bugs...

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